package Test;

/**
 * Created with Intellij IDEA.
 * Description:
 * User: 33013
 * Date: 2023-03-16
 * Time: 19:58
 */
class Student{
    String name = "rfsd";
    int age = 10;

    public Student() {

    }
}
public class Test {
    public static void main(String[] args) {
        String str = "123456789";
        System.out.println(str.matches("[1-9]\\d{5,20}"));
        Student student = new Student();
        System.out.println(student.age);
    }
}
